An optical modulation device is constituted by a first substrate provided with a plurality of first electrodes each comprising a plurality of portions electrically independent of each other, a second substrate disposed opposite to the first substrate and provided with a plurality of second electrodes...http://www.google.com.au/patents/US6177968?utm_source=gb-gplus-sharePatent US6177968 - Optical modulation device with pixels each having series connected electrode structure
